diff --git a/pkgs/development/libraries/mpfr/default.nix b/pkgs/development/libraries/mpfr/default.nix
index faa2e1b1a71..db5af11a670 100644
--- a/pkgs/development/libraries/mpfr/default.nix
+++ b/pkgs/development/libraries/mpfr/default.nix
@@ -1,11 +1,11 @@
 {stdenv, fetchurl, gmp}:
 
 stdenv.mkDerivation (rec {
-  name = "mpfr-3.1.0";
+  name = "mpfr-3.1.1";
 
   src = fetchurl {
     url = "mirror://gnu/mpfr/${name}.tar.bz2";
-    sha256 = "105nx8qqx5x8f4rlplr2wk4cyv61iw5j3jgi2k21rpb8s6xbp9vl";
+    sha256 = "1zfmmk4p26b67qpmh787p3dfxa71yd9mi02c4q45yf687pqw6rkv";
   };
 
   buildInputs = [ gmp ];